I need to mix flourescent and tungesten to have enough light for this interior scene.
I have 2x750w 3200k and one 450w 3200k. Not a lot of light but not a lot of budget. The scene has overhead flourescent lighting with on a 10 foot cieling.

I am producing a 16mm short film which has scenes inside a Grocery store. I am thinking about shooting the whole film in 7222 or 7231 B&W negative. If i use the overheads (which are fluorecents) will i be okay...
or is there somthing i'm missing? I undersand the green cast with "color", will this have affects in the b&w...

Again Sorry for twisting the post, didnt want to jar up the board with another one

Gelling has no effect on flicker, only color & brightness. Flicker is due to the fact that these are 60 hz (in the USA) AC discharge lamps that are pulsing with the AC cycle, so the camera has to be in-sync with them.

24 fps at crystal-sync is generally considered "60 hz flicker safe". At 24 fps with a 180 degree shutter, you get about 2 1/2 (or 2 1/3?) pulses per frame exposure (with a 144 degree shutter, you'd get exactly 2 pulses per frame).

As long as you CONSISTENTLY get that many pulse per frame, you won't see any flicker, hence why you have to be shooting at crystal sync at a "safe" frame rate. If you fall out of sync with the 60 hz sine wave, you may get more or less exposure per frame, which appears as flicker.

This is not the same thing as a malfunctioning fluorescent ballast or bulb that is visibly flickering even to the eye. The type of "flicker" I am talking about is invisible to the eye.

You named it. Stronger more directional keys (especially with b&w), some flagging for negative fill, etc. And try to art direct / costume design for more contrast, like use darker clothing. In flat lighting, a black shirt, for example, will provide some contrast. If you have enough stop, you could consider using Plus-X pushed one stop for more contrast than normally-processed Double-X.

Without a color temp. meter I have compared the flourescents with my tungsten by eye and they definately are green. So I have ordered a varietly of +green gels for the tungstens to attempt to match them by eye. I will shoot with an LLD and get the rest of the color correct in post.